| 29101 | Terzan Energy II LLC | Chandler, OK 74834 | Oil & Gas Operator | Mar 2025 |
| 29102 | Tesla Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 29103 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
| 29104 | Tesoro Expl. & Prod. Company | San Antonio, TX 78216 | Gas Operator | Sep 2010 |
| 29105 | Tesoro Petroleum | | Oil Operator | Mar 1982 |
| 29106 | Tesoro Petroleum Corporation | | Oil & Gas Operator | May 1982 |
| 29107 | Tess Oil Company | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 29108 | Tessara Petroleum Resources, LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 29109 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 2025 |
| 29110 | Testco Production Company | Watonga, OK 73772-0589 | Oil & Gas Operator | Aug 2013 |
| 29111 | Tesuque Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Jun 2025 |
| 29112 | Tet Energy | | Oil Operator | Feb 2025 |
| 29113 | Teton Energy Co Inc | Denver, CO 80239 | Oil Operator | Dec 1983 |
| 29114 | Teton Petroleum Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Jun 2025 |
| 29115 | Tetra Oil Company | | Oil & Gas Operator | Mar 2025 |
| 29116 | Tetragon Investments, LLC | Abilene, TX 79604 | Oil Operator | Jul 2014 |
| 29117 | Tettleton, Jon Otis | Nocona, TX 76255 | Oil & Gas Operator | Aug 2003 |
| 29118 | Tettleton, Steven B. | Nocona, TX 76255 | Oil Operator | Jun 2025 |
| 29119 | Tevebaugh MGMT Co | Baden, PA 15005-0123 | Oil & Gas Operator | Dec 2002 |
| 29120 | Tex-Am Petroleum Corp. | Eastland, TX 76448 | Oil & Gas Operator | Jun 2025 |
| 29121 | Tex-Am-Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 29122 | Tex-Ann Oil & Gas Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jun 2025 |
| 29123 | Tex-Atic Resources, Inc. | S. Lake Tahoe, CA 96150 | Oil & Gas Operator | Jun 2025 |
| 29124 | Tex-Con-Brehm-Basin Expl. | | Oil & Gas Operator | May 1990 |
| 29125 | Tex-Hio Energy | Terrell, TX 75156 | Oil & Gas Operator | Dec 1997 |
| 29126 | Tex-Lee Operating Company | Giddings, TX 78942 | Oil & Gas Operator | Jun 2025 |
| 29127 | Tex-Oak, Inc. | Oklahoma City, OK 73155 | Oil & Gas Operator | Dec 1995 |
| 29128 | Tex-Ok Energy LP | Cody, WY 82414 | Oil & Gas Operator | Apr 2025 |
| 29129 | Tex-Ok Energy, LTD Partnership | Cody, WY 82414 | Oil & Gas Operator | Jun 2025 |
| 29130 | Tex-R Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2021 |
| 29131 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Apr 2025 |
| 29132 | Tex-Well Oil & Gas Corp. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 29133 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 29134 | Texacal, Inc. | Newport Beach, CA 92660 | Oil & Gas Operator | Jun 2025 |
| 29135 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | Jun 2025 |
| 29136 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Mar 2025 |
| 29137 | Texaco Explorati | | Oil & Gas Operator | Dec 1996 |
| 29138 | Texaco Exploration & Prod | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 29139 | Texaco Exploration & Production Inc N W | Farmington, NM 87401 | Oil & Gas Operator | Aug 1995 |
| 29140 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 29141 | Texaco Inc & A.C. Glassell Jr | | Oil & Gas Operator | Aug 1980 |
| 29142 | Texaco Oils, Inc. | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 29143 | Texaco Producing Inc. | Rock Springs, WY 82901 | Oil & Gas Operator | Dec 2000 |
| 29144 | Texaco Seaboard, Inc. | | Gas Operator | Sep 1980 |
| 29145 | Texaco USA - Mor | | Oil Operator | Aug 1988 |
| 29146 | Texada Resources, Inc. | | Oil & Gas Operator | Dec 1992 |
| 29147 | Texakoma E & P, LLC | Plano, TX 75024 | Oil & Gas Operator | Jun 2025 |
| 29148 | Texakoma Exploration & Production LLC | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 29149 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 29150 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 29151 | Texakoma Opr LP | Plano, TX 75024-6679 | Oil & Gas Operator | Dec 2012 |
| 29152 | Texakota | | Oil & Gas Operator | Mar 1995 |
| 29153 | Texakota, Inc. | Houston, TX 77098 | Oil & Gas Operator | Mar 2021 |
| 29154 | Texalta Oil And Gas Inc. | | Gas Operator | Dec 1990 |
| 29155 | Texan Petroleum Corporation | Dallas, TX 75204 | Oil & Gas Operator | Oct 2004 |
| 29156 | Texan Production | Pearsall, TX 78061 | Oil & Gas Operator | Aug 2003 |
| 29157 | Texan Production Company, Inc. | Canyon Lake, TX 78133 | Oil & Gas Operator | Jun 2025 |
| 29158 | Texana Operating Company | Houston, TX 77090 | Oil & Gas Operator | Jun 2025 |
| 29159 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 29160 | Texas American Resources Company | Austin, TX 78701 | Oil & Gas Operator | Jun 2025 |
| 29161 | Texas City Refining, Inc. | | Oil & Gas Operator | Nov 1988 |
| 29162 | Texas Coastal Resources LLC | Fairhope, AL 36532 | Oil Operator | Jun 2025 |
| 29163 | Texas Concho Operating Co. | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1999 |
| 29164 | Texas Consolidated Pet. Corp. | Fort Worth, TX 76109 | Oil & Gas Operator | Jun 2025 |
| 29165 | Texas Crude & Dale Gas Expl | | Oil & Gas Operator | Dec 1984 |
| 29166 | Texas Crude Energy, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 2012 |
| 29167 | Texas Crude Exploration, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 1992 |
| 29168 | Texas Crude Oil Co. | | Oil & Gas Operator | Dec 1984 |
| 29169 | Texas Crude Oil Co. Et Al | | Oil & Gas Operator | May 1992 |
| 29170 | Texas Crude Oil, Inc. | | Oil & Gas Operator | Dec 1984 |
| 29171 | Texas Crude Operator, Inc. | Houston, TX 77098 | Oil & Gas Operator | Aug 2017 |
| 29172 | Texas Crude, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 1995 |
| 29173 | Texas Crude-Rebstock & Reeves | | Oil & Gas Operator | Feb 1980 |
| 29174 | Texas Crude-Wainoco-Hilliard | | Oil & Gas Operator | Jul 1978 |
| 29175 | Texas Eastern Skyline Oil | Houston, TX 77252 | Oil & Gas Operator | Jan 1987 |
| 29176 | Texas Eastern Transm. Corp. | | Oil & Gas Operator | Dec 2002 |
| 29177 | Texas Energen Inc. | Austin, TX 78731 | Oil & Gas Operator | Jun 2025 |
| 29178 | Texas Energies I | | Oil & Gas Operator | Aug 1994 |
| 29179 | Texas Energies, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 29180 | Texas Energy & Environmental | Houston, TX 77070 | Oil & Gas Operator | Nov 1998 |
| 29181 | Texas Energy & Environmental Inc | Houston, TX 77269 | Oil & Gas Operator | Oct 1998 |
| 29182 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 29183 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2025 |
| 29184 | Texas Energy Reserves, Inc | New Braunfels, TX 78130 | Oil & Gas Operator | Jun 1996 |
| 29185 | Texas Energy Sources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 29186 | Texas Energy Trust Company | Midland, TX 79701 | Oil & Gas Operator | Jun 2016 |
| 29187 | Texas Exploration & Prod. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 1996 |
| 29188 | Texas Fuel Company | Galveston, TX 77550 | Oil & Gas Operator | Jun 2025 |
| 29189 | Texas Gas Exploration Corp. | | Oil & Gas Operator | Nov 1986 |
| 29190 | Texas Gas Resources, Inc. | Houston, TX 77292 | Oil & Gas Operator | Jul 2009 |
| 29191 | Texas Gas Transmission Corp. | | Oil Operator | Aug 2003 |
| 29192 | Texas Gas Transmission LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 29193 | Texas General Petroleum Corp | | Oil & Gas Operator | Aug 1984 |
| 29194 | Texas Gulf Gas Corporation | Fayetteville, TX 78940 | Oil & Gas Operator | Jun 2005 |
| 29195 | Texas Hydrogen Energy Corp. | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 29196 | Texas Ind. Exploration, Inc. | | Oil & Gas Operator | Oct 2001 |
| 29197 | Texas Independent Explor LTD. | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 29198 | Texas Independent Explor., Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
| 29199 | Texas Independent Exploration LP | Houston, TX 77024 | Oil & Gas Operator | Mar 2017 |
| 29200 | Texas Independent Oil Co., LLC | Argyle, TX 76226 | Oil & Gas Operator | Jun 2025 |